Heat-radiator



UNITED STATES PATENT OFFICE.

ALFRED EDWARDS, OF CHICAGO, ILLINOIS.

HEAT-RADIATOR.

Specification forming partof Letters Patent No; 48,540, dated J nly 4, 1865.

To all 'whom it mayconcern:

Beit known that I, ALFRED EDWARDS, ot' the city of Chicago, in the county of (look and State of Illinois, have invented anew and useful Improvement in Radiating Heat-Regulators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings and the letters and figures marked thereon, which form part of thisf'specitication.

Thenature of my said invention consists in combining with a heat-controlling device al-, ranged within the stove-pipe an airheating chamber, wherein the air is heated and from which it is discharged'into the room, thus producing a device whereby the heatv passing up the stove-pipel is not onlyl controlled and regulated at will, but also heats the air in said. .chamber7 and thus greatlyincreases tlicamount or heat obtained from the stove.

To enable those skilled in the art to understand how' to construct land-use nay-invention, I will proceed to describe the same with particularity, reference being made in so doing to the aforesaid'drawings, in which- Figure l represents a side elevation of my invention; Fig. 2, a vertical central section of rectly over the end of the pipe opening linto the cylinder `from below, ot' such dimensions that the annular space between it and the cylinder B has the same superficial area as the stove-pipe, a representing a damper or 'valve 'at the top, as s hown.

The construction thus far described is identical with the invention set forth in the Letters Patent granted to me on the 13th day of September, A. D. 1864. My present invention consistsineonstrncting .a close cylinder or chamber upon this plate C, the upright walls of said cylinder being marked D and its top E. i

At the bottom of said chamber D there are two tubes leading through the end of B, (marked b b,)-and,at the top are two similar tubes, (marked c c.) As the heat passes up through the annular space between B and D, as indicated by the dark arrowsin Fig. 2,' the air within the chamber D is heated and passes out. at the top through c c, fresh air being admitted from below to supply the vacuum therein, as shown by the red arrows.

What I claimV as new, and desirevto secure by Letters Patent, is-

The combination of the heating-chamber D, provided with inlet and outlet tubes b c, with the cylinder B and circular plate C, arranged and operating` as and for the purposes shown and specified.

` A ALFRED EDWARDS. Witnesses:

' W. E. MARES, L. L. UoBUnN. 

